Difference between Class extensions and Plug-ins

Discussion created by syamarth on Jul 13, 2010
ArcGIS 10 Pre-release: May I know what changes are made to Class extensions &/ Plug-ins architecture. I dont get when should I go for class extensions and when should I use Plug-ins for a geodatabase customization using .NET APIs. Are there any advantages in using Plug-ins than Class extensions?
Thanks in advance!